In the last tutorial on What is Hadoop? i have given you a brief idea about Hadoop. So the two integral parts of Hadoop is Hadoop HDFS and Hadoop MapReduce.
Lets go further deep inside HDFS.
Hadoop Distributed File System (HDFS) Concepts:
First take a look at the following two terminologies that will be used while describing HDFS.
Cluster: A hadoop cluster is made by having many machines
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